Struct FlowConfig 

pub struct FlowConfig { /* private fields */ }

Configuration for a flow.

Implementations

impl FlowConfig

pub fn new( fake_body_mode: FakeBodyMode, fake_header_mode: FakeHeaderConfig, ) -> Self

pub fn random<AE: AsyncExecutor>(settings: &Settings<AE>) -> Self

Create a random flow configuration drawn from the default probability distributions.

• Headers: included with probability FAKE_HEADER_PROBABILITY; if included, a random number of fields are packed to fill a length sampled from [FAKE_HEADER_LENGTH_MIN, FAKE_HEADER_LENGTH_MAX].
• Body: chosen by the FAKE_BODY_WEIGHT_* settings (Empty / Random / Constant / Random{service}). In Constant mode packet_length is sampled once at flow init from [FAKE_BODY_CONSTANT_LENGTH_MIN, FAKE_BODY_CONSTANT_LENGTH_MAX] (clamped to [FAKE_BODY_LENGTH_MIN, mtu]) and then held constant for every packet in that flow — different flows get different constants, breaking the sharp single-mode wire-size spike that a global fixed-length Constant would produce.

pub fn max_overhead(&self) -> usize

Maximum bytes this flow config can prepend to a packet (fake header + worst-case fake body). Used to reserve before_capacity in packet buffers. Conservative for Constant mode.

pub fn max_user_payload( &self, mtu: usize, crypto_overhead: usize, tailer_len: usize, ) -> usize

Maximum user-data bytes per packet given MTU and the per-packet crypto/tailer overhead. For Constant mode the wire size is fixed to packet_length, so the data budget is min(packet_length, mtu) - (fake_header + crypto + tailer). For other modes it is mtu - (fake_header + fake_body_max + crypto + tailer).

pub fn assert(&self, max_packet_size: usize) -> Result<(), FlowControllerError>

Validate that the flow configuration is consistent with the given max packet size.

Trait Implementations

impl Clone for FlowConfig

fn clone(&self) -> FlowConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FlowConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.